Siege-gun mounting.



A. T. DAWSON & G. T. BUCKHAM.

SIEGE GUN MOUNTING.

APPLICATION FILED JUNE 21. I917.

1,299, 1 38, Patented Apr. 1, 1919.

7 To all whom z't may concern:

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ATENT OFFICE.

ARTHUR TREVOR DAWSON AND GEORGE THOMAS BUCKHAM, OF WESTMINSTER, LONDON, ENGLAND, ASSIGNORS TO VICKERS LIMITED, OF WESTMINSTER,

ENGLAND.

SIEGE-GUN MOUNTING.

Application filed June 21, 1917.

Be it known that we, Sir ARTHUR TREVOR DAwsoN, knight, and GEORGE THOMAS BUCK- HAM, both subjects of the King of Great Britain, residing at Vickers House, Broadway, Westminster, in the county of London, England, have invented certain new and useful Improvements in or Relating to Siege- Gun Mountings, of which the following is a specification.

This invention relates to siege gun mountings of the kind in which the carriage is adapted to be traversed upon a bedplate suitably anchored to the ground.

According to this invention the bedplate is composed of a number of members or beams which are detaehably connectedtogether to constitute a structure of triangular or approximately triangular formation whose apex lies in the direction of the gun muzzle and whose base preferably carries an are upon which the rear portion of the carriage moves during traversing; the said structure is adapted to be sunk or embedded in the ground so that its upper surface is level with or only slightly above the ground. This arrangement enables the height of the gun above the ground to be reduced as compared with siege gun mountings heretofore proposed. Furthermore the rear face of the base of the structure by hearing against the contiguous portion of the ground prevents rearward movement of the mounting from taking place during firing, and the necessity for the usual concrete bed is therefore obviated.

In order that the said invention may be clearly understood and readily carried into effect, we will describe the same more fully with reference to the accompanying drawings, in which Figure 1 is a side elevation showing diagrammatically a constructional form of the improved bedplate with a gun and its carriage in position thereon, and

Fig. 2 is a plan of Fig. 1 with the gun and its carriage removed.

A represents the bedplate composed of two side beams A, A, and a base beam A these three beams constituting a. structure of triangular or approximately triangular formation as aforesaid. A represents the are which is carried by the base beam A and Specification of Letters Patent.

Patented Apr. 1, 1919.

Serial No. 176,109.

upon which the rear portion of the carriage moves during traversing.

In the example shown the side beams A, A of the triangular structure are hinged together at the apex so that they can be brought together for transport purposes. Arranged at a suitable position intermediate of the apex and the base beam A is a transverse beam B of substantial depth and width which is adapted to be bolted or otherwise secured to the side beams with the latter resting upon the said transverse beam. This transverse beam carries the turntable B or the like about which the carriage moves in traversing. The rear ends of the side beams A, A rest upon the base beam A and are suit-ably attached thereto, this beam being preferably of the same depth as the transverse beam B so as to leave between these two beams a pit (indicated at b) which accommodates the breech end of the gun when firing at large angles of elevation and locating brackets a are provided on the side beams A for insuring that the cross beam B shall assume its correct position in relation to the'beams A. The beams A and B may be connected to each other by a suitable arrangement of detachable tie rods b, b as shown by Fig. 2. Arranged across the forward portion of the triangular structure is a ballast box B which is filled with earth or otherwise weighted to prevent the forward portion of the structure from rising durin firing. It will be observed from Fig. 1 that the rear face of the base beam A bears against the contiguous portion of the ground and thereby, as aforesaid, prevents rearward movement of the mounting from taking place during firing.

What we claim and desire to secure by Letters Patent of the United States is 1. A siege gun mounting having a bedplate adapted to be sunk or embedded in the ground and comprising in combination a number of beams connected together to form a triangular structure whose apex lies in the direction of the gun muzzle.

2. A siege gun mounting having a bed plate adapted to be sunk or embedded in the ground and comprising in comblnatlon two side beams whose forward ends meet at a point, and a base beam connecting the rear ends of the side beams together.

3. A siege gun mounting having a bedplate adapted to be sunk or embedded in the ground and comprising in combination two side beams whose forward ends are hinged together and .a basebeam connectingthe rear ends of the side beams together.

4:. A siege gun mounting havin'g'a .bedplate adapted to be sunk or embedded in the ground and comprising in combination two side beams whose forward ends are hinged together, a base beam connecting the rear ends of the side beams together and a'training -arccarried by said base beam. 1 '5. A siege gun mounting having a bedplate adapted to be sunk or embedded in the ground and comprising in combination two side beams whose forward ends meet at a I point, a base beam connecting the rear ends 6. A siege gun mounting having a bed plate adapted to be sunk or embedded in the ground and comprising in combination two side beams whose forward ends meet at a P011113, a base beam connecting the rear ends of the side beams together, a transverse beam connected to said side beams at a point Copies of this patent may be obtained for between their ends and arranged parallel to point, a base beam connecting the rear ends of the side beams together and a transverse beam connected to said side beams at a point between their ends and arranged parallel to the base beam, said base beam and trans- Verse beam being arranged beneath the side beams.

8. A siege gun mounting having a bedplate adapted to be sunk or embedded in the ground and comprising in combination two side beams whose forward endsmeet'at a point, a base connecting the rear ends of the side beams together, and a ballast'boX carried. by the forward parts of said side beams.

In testimony whereof we have hereunto afliXed our slgnatures.

JNO. R. 'OAswELL,

GERTRUDE five cents each, by addressing the Commissioner 0! Patents. Washington, D. 0. 

